what TB are you blown guys running, any 90mm's out there, i dont even know what the stock size is, im assuming 70mm, but im probly wrong,
port and polished tb's anyone?
any gains?

 

I still have the stocker on mine. I plan on going with an LS2 in the near future.

 

sounds good what are the specs on an Ls2? are you going to switch the manifold out too?

just thought of something, do you mean a whole motor? or just the Ls2 tb?

 

i believe he means just the tb. i think the LS2 tb is 90mm. not 100% though. i know blownchevy is putting one on his truck. he has a thread in the gm section somehwere with pictures but it is for a electric tb.

 

LS2 throttle body. It's 90mm. It has a different bolt pattern. I have the radix so it mounts to the radix intake. I will make an adaper plate to do it. That is as far as I've gotten in my planning. I'm hoping Blownchevy or someone on here beats me to it and works all the bugs out before I have to.
The throttle body size can't be your boost problem, if that is what you are getting at.

 

https://www.performancetrucks.net/fo...hlight=90mm+tb

 

no i know its not the problem im just looking into the future, just trying to learn what i can about FI
still trying to build a fast truck, while working out the kinks